Q: i race 85/150cc at icr in warner robins ga. i race a crf150r right now.does the kx have is much power. im 13 and im 5'3 my 150r is expert model. should i go for the kx or keep my 150. im getting a hella deal on a kx 100.
A: AMA class is 86 to 125cc. Or that would be class you race in with kx 100.AMA Sport's 2008 rulebook